LOOK: ARIANA GRANDE Suspends The Rest Of Her Tour

What's supposed to be a safe haven for people who wants to have a good time turned tragic. Authorities have confirmed raised in toll of casualties- 22 dead and around 50 injured- following the blast reports at Ariana Grande's concert in Manchester, which is being treated as possible terrorist attack.

The pop star's label initially assured the public that she is "OK" and had left the stage just before the bombing and mass panic occured. More artists expressed their thoughts over the unfortunate incident on Twitter.

Sources, meanwhile, told TMZ that the "Side To Side" singer was "in hysterics" after learning the fatalities and decided to put entire shows on hold in wake of the attack and because "she's in no condition to perform". Manchester was the first leg of her Dangerous Woman European Tour and was slated to perform in England, Belgium, Poland, Germany and Switzerland.